Cultivator



(No Model.)

` J. D. BURKHART.

GULTIVATOR.

180,430,828. Patented Ju'ne 24, 1890.

ATTORNEY E mw@ me noms pneus co., Puorumo., msmfmron, o, z:A

NITED STATES PATENT JOHN D. BURKHART, OF DAYTON, VASHINGTON.

CU LTIVATOR.

SPECIFICATION forming part of Letters Patent No. 430,828, dated June 24,1890.

Application tiled September 9, 1889. Serial No. 323,471. (No model.)

To a/ZZ whom t may concern.-

Be it known that I, JOHN D. BURKHART, of Dayton, in the county ofColumbia, fashington Territory, have invented a new and usefulImprovement in Oultivators, of -which the following is a specitication.

My invention consists in a new and improved cultivator, which will behereinafter fully described and claimed.

Referring to the accompanying drawings, Figure l is a top plan View ot'my improved cultivator. Fig. 2 is a vertical transverse section on theline 2 2, Fig. l. Fig. 3 is a detail view of the plow-beam.

The same letters of reference indicate corresponding parts in all theiigures.

Referring to the several parts by letter, A indicates the Jfront, A theback, and A2 the side pieces of the rectangular frame of my cultivator.

B indicates the tongue, which is secured across the frame, as shown, andupon the rear end of the tongue is secured the springseat C, as shown.

D indicates the plow or shovels of the cultivator, which are formed atthe back with the wide open space D2, leaving the long diverging win gsD D. These plows or shovels are secured to the lower ends of curvedbeams E, which are curved, as shown in the drawings, and to the upperends of which are bolted the rear converging ends of connecting-rods FF. Upon the front bar A of the cultivator-frame are bolted stirrups G,upon which the eyed forward-diverging ends of the connecting; rods F andF are pivotally mounted. The front upper end of each beam E is formedwith a transverse slot E', and the rear ends of the rods F F have athreaded bolt F2 passing through them and through this slot E, by whicharrangement the ends of the beams E can be adjusted up 0r down, andsecured by tightening a nut F3 on the end of each bolt F2, to cause theplows to run deep or shallow.

rlhe connecting-rods F are made so much shorter than the rods F thatthey will bring the plows to which they are secured in advance of theplows to which the rods F are secured. The plows are arrangedalternately, as shown, those with the shorter rods F in between theplows having the longer rods-F, by which construction and arrangement agreater number of these plows with their long wings can be secured inthe frame than if it was attempted to place them side by side.

Between the rear ends of the side pieces A2 of the frame is j ournaled aroller II, having short arms II in line with the plow-beams, the outerends of these roller-arms being connected by chains I to the plow-beamsbelow them. On this roller is secured a handlever J, and it will be seenthat by drawing back this lever by the hand the driver can readily andinstantly raise all of the plows clear of the ground, and can hold themthus elevated by allowing a spring-catch K on the side of thelever-handle to engage with a rack L.

The axle M is Ain two parts or sections, t-he sections being mounted inbearingsN on the under side of the side pieces A2, and also mounted attheir inner ends in a box O. The shaft-sections have on their outer endsthe usual iron Wheels I.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

rIhe improved cultivator, consisting of the tongued frame, the axle andwheels, the plows D, each having lateral wings D D', their curved beamsE, and diverging connectingrods F F', rigidly attached to said beams,the stirrups (l, attached to front of the frame, and each serving aspoint of attachment for one of the rods of a beam, the roller H, havingarms H', chains I, hand locking-lever, and rack L, all as shown anddescribed.

JOHN D. BURKHART.

Witnesses:

C. R. DORR, J. A. KnLLoce.

